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Connect4 Game

Apr 21, 2017 at 2:06pm
gubhaus (11)
I'm working on an assignment using classes to create a Connect4 game. The classes themselves were created by my teacher and I only have programmed the main function. I am having trouble getting the game to work properly however. My game seems to play twice for the human, placing a two pieces at one time in the column that the user chooses. Any help is appreciated. 

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  #include "hw6.h"

//---------------------------------------------------
// Constructor function
//---------------------------------------------------
Connect4::Connect4()
{
   ClearBoard();
}

//---------------------------------------------------
// Destructor function
//---------------------------------------------------
Connect4::~Connect4()
{
   // Intentionally empty
}

//---------------------------------------------------
// Clear the Connect4 board
//---------------------------------------------------
void Connect4::ClearBoard()
{
   // Initialize Connect4 board
   for (int c = 0; c < COLS; c++)
   for (int r = 0; r < ROWS; r++)
      board[r][c] = ' ';

   // Initialize column counters
   for (int c = 0; c < COLS; c++)
      count[c] = 0;
}

//---------------------------------------------------
// Add player's piece to specified column in board
//---------------------------------------------------
bool Connect4::MakeMove(int col, char player)
{
   // Error checking
   if ((col < 0) || (col >= COLS) || (count[col] >= ROWS))
      return false;

   // Make move
   int row = count[col];
   board[row][col] = player;
   count[col]++;
   return true;
}

//---------------------------------------------------
// Check to see if player has won the game
//---------------------------------------------------
bool Connect4::CheckWin(char player)
{
   // Loop over all starting positions
   for (int c = 0; c < COLS; c++)
   for (int r = 0; r < ROWS; r++)
   if (board[r][c] == player)
   {
      // Check row
      int count = 0;
      for (int d = 0; d < WIN; d++)
         if ((r+d < ROWS) && 
            (board[r+d][c] == player)) count++;
      if (count == WIN) return true;
    
      // Check column
      count = 0;
      for (int d = 0; d < WIN; d++)
         if ((c+d < COLS) && 
            (board[r][c+d] == player)) count++;
      if (count == WIN) return true;
    
      // Check first diagonal
      count = 0;
      for (int d = 0; d < WIN; d++)
         if ((r+d < ROWS) && (c+d < COLS) && 
            (board[r+d][c+d] == player)) count++;
      if (count == WIN) return true;
    
      // Check second diagonal
      count = 0;
      for (int d = 0; d < WIN; d++)
         if ((r-d >= 0) && (c+d < COLS) && 
            (board[r-d][c+d] == player)) count++;
      if (count == WIN) return true;
   }
   return false;
}

//---------------------------------------------------
// Print the Connect4 board
//---------------------------------------------------
void Connect4::PrintBoard()
{
   // Print the Connect4 board
   for (int r = ROWS-1; r >= 0; r--)
   {
      // Draw dashed line
      cout << "+";
      for (int c = 0; c < COLS; c++)
         cout << "---+";
      cout << "\n";

      // Draw board contents
      cout << "| ";
      for (int c = 0; c < COLS; c++)
         cout << board[r][c] << " | ";
      cout << "\n";
   }

   // Draw dashed line
   cout << "+";
   for (int c = 0; c < COLS; c++)
      cout << "---+";
   cout << "\n";

   // Draw column numbers
   cout << "  ";
   for (int c = 0; c < COLS; c++)
      cout << c << "   ";
   cout << "\n\n";
}

//---------------------------------------------------
// Main program to play Connect4 game
//---------------------------------------------------
int main()
{
	int choice;
	int counter = 0;
	srand (time(NULL));
	Connect4 board;
	cout << "Welcome to Connect 4!" << endl << "Your Pieces will be labeled 'H' for human. While the computer's will be labeled 'C'" << endl;
	board.PrintBoard();
	cout << "Where would you like to make your first move? (0-6)";
	cin >> choice;
	while (board.MakeMove(choice,'H') == false){
	cin >> choice;
	}
	counter++;
	while (board.CheckWin('C') == false && board.CheckWin('H') == false && counter != 21){
	while (board.MakeMove(rand() % 7, 'C') == false){}
	board.PrintBoard();
	cout << "Where would you like to make your next move?" << endl;
	cin >> choice;
	board.MakeMove(choice,'H');
	while (board.MakeMove(choice,'H') == false){
	cin >> choice;
	}
	counter++;
	}
	

	if (board.CheckWin('C')){
	cout << "Computer Wins!" << endl;}
	else if (counter == 21){cout << "Tie Game!" << endl;}
	else {cout << "Human Wins!" << endl;}
	board.PrintBoard();

}
Edit & run on cpp.sh
Apr 21, 2017 at 2:14pm
gubhaus (11)
HA. nevermind found my stupid mistake.
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